DatasheetsPDF.com

S-5470

Seiko Instruments
Part Number S-5470
Manufacturer Seiko Instruments
Description ULTRA-LOW CURRENT CONSUMPTION PHOTOCURRENT DETECTION IC
Published Mar 9, 2016
Detailed Description S-5470 Series www.sii-ic.com © Seiko Instruments Inc., 2012 ULTRA-LOW CURRENT CONSUMPTION PHOTOCURRENT DETECTION IC Re...
Datasheet PDF File S-5470 PDF File

S-5470
S-5470

Overview
S-5470 Series www.
sii-ic.
com © Seiko Instruments Inc.
, 2012 ULTRA-LOW CURRENT CONSUMPTION PHOTOCURRENT DETECTION IC Rev.
1.
2_00 The S-5470 Series, developed by CMOS technology, is a photocurrent detection IC with an ultra-low current consumption.
It detects 0.
7 nA typ.
photocurrent generated by an external photodiode (PD) or LED.
It also has a function to detect the difference of photocurrent level between two external photodiodes (PDs) or LEDs.
Due to its ultra-low current consumption and low-voltage operation, the S-5470 Series is suitable for battery-operated small mobile device applications.
„ Features • Ultra-low current consumption: • Micro-photocurrent detection: • Wide operation voltage range: • Detection of certain photocurrent level: IDD ≤ 0.
1 nA typ.
IDET = 0.
7 nA typ.
VDD = 0.
9 V to 5.
5 V Detects certain level of photocurrent generated by external photodiode (PD) or LED • Detection of photocurrent level difference: Detects the difference of photocurrent level between external • External parts: • Lead-free (Sn 100%), halogen-free*2 photodiodes (PDs) or LEDs One or two external photodiodes (PDs) or LEDs*1 *1.
The required number of PDs or LEDs changes with operation.
Regarding selection of PD and LED, refer to "3.
Selection of PD or LED" in "„ Application Circuits".
*2.
Refer to "„ Product Name Structure" for details.
„ Applications • Shading detection • Light and darkness detection • Non-contact switch for portable and wireless device „ Package • SOT-23-5 Seiko Instruments Inc.
1 ULTRA-LOW CURRENT CONSUMPTION PHOTOCURRENT DETECTION IC S-5470 Series Rev.
1.
2_00 „ Block Diagrams 1.
CMOS output product VDD INP INM *1 *1 *1 + Current adder − Current amplifier IDET + Current comparator − Logic selection *1 OUT *1 VSS *1.
Parasitic diode 2.
Nch open-drain output product VDD Figure 1 INP INM *1 *1 *1 + Current adder − Current amplifier IDET + Current comparator − Logic selection OUT *1 VSS *1.
Parasitic diode Figure 2 2 S...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)